physics vocab

Question 1

example of resonance

Answer 1

singer breaking a wine glass
driving force = singer
effect = glass breaks

Question 2

resonance

Answer 2

when the driving frequency is equal to the natural frequency and as a result maximum amplitude of oscillation is reached

Question 3

damping

Answer 3

effects that remove energy from a system, e.g. friction

Question 4

forced oscillation

Answer 4

external driving force is applied to cause something to oscillate at a specific frequency - amplitude depends on the driving force

Question 5

free oscillation

Answer 5

a pendulum or a mass-spring system is left to vibrate at its natural frequency

Question 6

isochronous oscillator

Answer 6

the period of a simple harmonic oscillator is independent to its amplitude

Question 7

simple harmonic motion

Answer 7

acceleration of an object towards the equilibrium is directly proportional to its displacement from equilibrium

Question 8

centripetal force

Answer 8

any force that keeps a body moving with uniform speed along a circular path that is perpendicular to the velocity of an object

Question 9

angular velocity

Answer 9

rate of change of angle

Question 10

radian

Answer 10

SI unit for angle
angle subdued by a circular arc with a length equal to the radius of the circle
2 pi = 360